//
//  AppDelegate.swift
//  XJWeiBo
//
//  Created by 李旭杰 on 2017/3/26.
//  Copyright © 2017年 李旭杰. All rights reserved.
//

import UIKit
import SVProgressHUD

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    
    var window: UIWindow?
    
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        
        /// 设置提示框的停留时间
        SVProgressHUD.setMinimumDismissTimeInterval(1)
        
        /// 注册切换根视图控制器的通知
        NotificationCenter.default.addObserver(self, selector: #selector(switchRootViewContrlooer(notification:)), name: NSNotification.Name(rawValue: "SwitchRootViewContrlooer"), object: nil)
        
        /// 创建 window
        window = UIWindow(frame: UIScreen.main.bounds)
        /// 设置背景色
        window?.backgroundColor = UIColor.white
        /// 设置根视图
        let rootVC = LXJWelcomeController()
        window?.rootViewController = rootVC
        
        /// 设置可见
        window?.makeKeyAndVisible()
        
        return true
    }
    
    // MARK: 切换根视图控制器
    @objc private func switchRootViewContrlooer(notification: Notification) {
        /// 获取参数形式传递过来的对象
        let objc = notification.object
        /// 判断 objc 的 类型
        /// 登录成功后切换到欢迎页
        if objc is LXJOAuthController {
            window?.rootViewController = LXJWelcomeController()
        }
            /// 欢迎页结束之后切换到主页
        else{
            window?.rootViewController = LXJMainController()
        }
    }
    
    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }
    
    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }
    
    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }
    
    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }
    
    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }
    
    /// 移除通知
    deinit {
        NotificationCenter.default.removeObserver(self)
    }
}

